Redwood Forest - Largest Patch

The three redwood subfamily genera are: Sequoia and Sequoiadendron of California and Oregon, USA; and Metasequoia in China. The redwood species contains the largest and tallest trees in the world. These trees can live to an old age, with some for hundreds to thousands of years. This is an endangered subfamily due to habitat losses from: fire, ecology suppression, development, and air pollution.